How do I clean my quarantine folder?

Hi Experts!
I'm a newbie as far as anti virus and malware softwares are concerned.
I recently bought ESET Smart Security aand it did it's first complete scan. To my shock/horror it found 3696 virus. 98% of them Ramnit.A. It sent them all into my quarantine folder. What I would like to now is how do I delete all these in one go. Tried to delete them one by one, but everytime I got shot of one the files loaded up again. I got fed up after deleting 20!
Is there another way?
Awaiting eagerly for your advice.
Thanks.